Egypt XI-XII century? (bronze)

Below are my 3 copper or bronze coins, each about 16-18 mm in diameter
I bought them rather out of curiosity, I don't think they should be of big value.
But I would still appreciate very much if you can help me identify them. It looks like they contain Arabic letters. 

The first (must be the hardest to identify - I will take a better photo and post it later today):

The second:

The third:

Indeed, these are very tough. Medieval islamics are not my area and I can't read arabic (except numbers).

#1 is so dark that I think it's near impossible to read it. Don't know even if it's right side up (which I think it's not).

#2 is the best looking one. The design looks Ayyubid.

#3 is the one with the most curious design. Didn't know even how to search it.

But searching among islamic coins, only a few mamluk coins showed this design, which turns out to be a waterwheel.

We need someone who can read it for an exact ID, but I can link this coin just to give you an example: N#150477 

Giobruno

Indeed, these are very tough. Medieval islamics are not my area and I can't read arabic (except numbers).

 

#1 is so dark that I think it's near impossible to read it. Don't know even if it's right side up (which I think it's not).

 

#2 is the best looking one. The design looks Ayyubid.

 

#3 is the one with the most curious design. Didn't know even how to search it.

But searching among islamic coins, only a few mamluk coins showed this design, which turns out to be a waterwheel.

We need someone who can read it for an exact ID, but I can link this coin just to give you an example: N#150477 

Thanks a lot! I'll try to search more to identify 2 and 3.

I took the first one out of the casing and made a (kind of) better photo.
It seems to be Egypt, like the first two, but I cannot go any further.

I wouldn't say Egypt.

A big part of the Ayyubid and Mamluk coins in our catalog comes from what's now Syria. The mamluk one I linked earlier is syrian.

And looking at the catalog, the ayyubid coins with the closest design compared with your coin #2 comes from Aleppo.

As for #1, it may be Abbasid but it's a wild guess. To make things worse, the minting place is written at the margin, which is 80-90% unreadable. So theorically it can be from anywhere on the middle east.